Evolutionary patterns of RNA-based duplication in non-mammalian chordates.
The role of RNA-based duplication, or retroposition, in the evolution of new gene functions in mammals, plants, and Drosophila sa has been widely reported.However, little is known about RNA-based duplication in non-mammalian chordates.In this study, we screened ten non-mammalian chordate genomes for retrocopies and investigated their evolutionary p